The stock of Blue Water Tours, Inc. is expected to return 15.50 percent in a boom economy, 10.50 percent in a normal economy, and lose 9.50 percent in a recessionary economy. What is the expected rate of return on this stock if there is a 7.00 percent chance the economy booms, and an 82.00 percent chance the economy will be normal? 7.48 percent 9.13 percent 8.40 percent 8.65 percent